Ground Water in the Lajas Valley, Puerto Rico (open access)

Ground Water in the Lajas Valley, Puerto Rico

Abstract: Lajas Valley is plagued with problems of salinity and waterlogging the soils. Use of brackish (500 milligrams per liter) irrigation compounded ground water for the problem until an irrigation-drainage system was constructed in 1955. Lajas is an alluvium-filled limestone highlands. The alluvium, mostly clay and as much 300 feet (90 meters) thick, contains brackish ground water except in the recharge areas located along the foothills...Results from a digital model show that a network of discharge wells could alleviate waterlogging of the soils in the artesian area.
Date: March 1977
Creator: Anderson, Henry R.
Object Type: Report
System: The UNT Digital Library
Political Status of Puerto Rico: Options for Congress (open access)

Political Status of Puerto Rico: Options for Congress

This report discusses the current U.S.-Puerto Rico relationship, the history of said relationship, and the current political state of Puerto Rico, as well as relevant pieces of U.S. Congressional legislation concerning Puerto Rico.
Date: June 19, 2009
Creator: Bea, Keith & Garrett, R. Sam
Object Type: Report
System: The UNT Digital Library
Political Status of Puerto Rico: Options for Congress (open access)

Political Status of Puerto Rico: Options for Congress

This report discusses the current U.S.-Puerto Rico relationship, the history of said relationship, and the current political state of Puerto Rico, as well as relevant pieces of U.S. Congressional legislation concerning Puerto Rico.
Date: May 19, 2010
Creator: Bea, Keith & Garrett, R. Sam
Object Type: Report
System: The UNT Digital Library
Political Status of Puerto Rico: Options for Congress (open access)

Political Status of Puerto Rico: Options for Congress

This report discusses the current U.S.-Puerto Rico relationship, the history of said relationship, and the current political state of Puerto Rico, as well as relevant pieces of U.S. Congressional legislation concerning Puerto Rico.
Date: August 4, 2009
Creator: Bea, Keith & Garrett, R. Sam
Object Type: Report
System: The UNT Digital Library
Political Status of Puerto Rico: Options for Congress (open access)

Political Status of Puerto Rico: Options for Congress

This report discusses the current U.S.-Puerto Rico relationship, the history of said relationship, and the current political state of Puerto Rico, as well as relevant pieces of U.S. Congressional legislation concerning Puerto Rico.
Date: March 16, 2010
Creator: Bea, Keith & Garrett, R. Sam
Object Type: Report
System: The UNT Digital Library
Political Status of Puerto Rico: Options for Congress (open access)

Political Status of Puerto Rico: Options for Congress

This report discusses the current U.S.-Puerto Rico relationship, the history of said relationship, and the current political state of Puerto Rico, as well as relevant pieces of U.S. Congressional legislation concerning Puerto Rico.
Date: April 23, 2010
Creator: Bea, Keith & Garrett, R. Sam
Object Type: Report
System: The UNT Digital Library
Puerto Rico Energy Center Study: Executive Summary (open access)

Puerto Rico Energy Center Study: Executive Summary

From introduction: The scope of work of the study was to compile and analyze information on the resources and requirements of the southwestern, southeastern, and north-central coastal regions of the Commonwealth, and assess industrial and agricultural activities which in conjunction with the power and desalting plants, might comprise the energy center complex. The study was also to identify the need for any experimental, pilot or demonstration projects which benefit the practical application of the Energy Center concept in Puerto Rico.
Date: July 1970
Creator: Burns and Roe
Object Type: Report
System: The UNT Digital Library
Puerto Rico Energy Center Study: Volume 1 (open access)

Puerto Rico Energy Center Study: Volume 1

From introduction: The scope of work of the study was to compile and analyze information on the resources and requirements of the southwestern, southeastern, and north-central coastal regions of the Commonwealth, and assess industrial and agricultural activities which in conjunction with the power and desalting plants, might comprise the energy center complex. The study was also to identify the need for any experimental, pilot or demonstration projects which benefit the practical application of the Energy Center concept in Puerto Rico.
Date: July 1970
Creator: Burns and Roe
Object Type: Report
System: The UNT Digital Library
Puerto Rico Energy Center Study: Volume 2 (open access)

Puerto Rico Energy Center Study: Volume 2

From introduction: This report concerns nuclear power plant deployment in Puerto Rico.
Date: July 1970
Creator: Burns and Roe
Object Type: Report
System: The UNT Digital Library
Puerto Rico Energy Center Study: Executive Study (open access)

Puerto Rico Energy Center Study: Executive Study

From background: The study is an outgrowth of investigations by the Atomic Energy Commission and the Office of Saline Water into the use of nuclear energy to supply heat for desalting seawater and for generating electricity, and of work on the energy center concept conducted at the AEC's Oak Ridge National Laboratory. The bases for the study were set forth in a Memorandum of Understanding signed by Commissioner James T. Ramey of the United States Atomic Energy Commission, Under Secretary David S. Black of the United States Department of the Interior, Acting Executive Director Fernando Torrent of the Puerto Rico Water Resources Authority, and Executive Director Orlando Gonzalez of the Puerto Rico Aqueduct and Sewer Authority.
Date: July 1970
Creator: Burns and Roe, Inc.
Object Type: Report
System: The UNT Digital Library
Iron-Ore Resources of the United States: Including Alaska and Puerto Rico, 1955 (open access)

Iron-Ore Resources of the United States: Including Alaska and Puerto Rico, 1955

From introduction: The purpose of this report is to summarize available information concerning iron-ore resources in the United States in order to provide a general background for understanding and appraising the present status of this basic commodity.
Date: 1959
Creator: Carr, Martha S. & Dutton, Carl E.
Object Type: Report
System: The UNT Digital Library
Water Resources of the North Coast Limestone Area, Puerto Rico (open access)

Water Resources of the North Coast Limestone Area, Puerto Rico

From introduction: The North Coast Limestone area is one of the two most important ground-water provinces of Puerto Rico--the other being the South Coast Alluvial aquifer. The investigation of the water resources of the South Coast has progressed to the point that at this time (mid-1971) an electric-analog model of the area is being prepared. The hydrology of the North Coast Limestones, however, was never investigated as a whole before this investigation, and, therefore, this study was designed to assess the most important hydrolic features of the area.
Date: February 1976
Creator: Giusti, E. V. & Bennett, G. D.
Object Type: Report
System: The UNT Digital Library
Aeroradioactivity Survey and Geology of Puerto Rico (ARMS-I) (open access)

Aeroradioactivity Survey and Geology of Puerto Rico (ARMS-I)

Report containing an aeroradioactivity survey of Puerto Rico made on behalf of the Division of Biology and Medicine, United States Atomic Energy Commission. Topics include the types of bedrock noted in the area as well as their levels of radioactivity.
Date: March 1964
Creator: MacKallor, Jules A.
Object Type: Report
System: The UNT Digital Library
United States Earthquakes, 1930 (open access)

United States Earthquakes, 1930

Report discussing earthquake activity in the United States during 1930. The report is broken down by regions and has sections for specific earthquakes.
Date: 1932
Creator: Neumann, Frank & Bodle, R. R.
Object Type: Report
System: The UNT Digital Library
Citrus Fruit Growing in the Gulf States (open access)

Citrus Fruit Growing in the Gulf States

Report discussing best practices for cultivating a citrus orchard. Discussion includes possible grove sites, varieties of citrus trees, fertilizers, methods of cold protection, and nursery cultivation.
Date: 1906
Creator: Rolfs, P. H. (Peter Henry), 1865-1944
Object Type: Pamphlet
System: The UNT Digital Library
Experiment Station Record, Volume 86, January-June, 1942 (open access)

Experiment Station Record, Volume 86, January-June, 1942

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 879.
Date: 1943
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 87, July-December, 1942 (open access)

Experiment Station Record, Volume 87, July-December, 1942

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 901.
Date: 1943
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 88, January-June, 1943 (open access)

Experiment Station Record, Volume 88, January-June, 1943

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 871.
Date: 1944
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 89, July-December, 1943 (open access)

Experiment Station Record, Volume 89, July-December, 1943

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 781.
Date: 1944
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 90, January-June, 1944 (open access)

Experiment Station Record, Volume 90, January-June, 1944

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 865.
Date: 1945
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 91, July-December, 1944 (open access)

Experiment Station Record, Volume 91, July-December, 1944

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 789.
Date: 1945
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 92, January-June, 1945 (open access)

Experiment Station Record, Volume 92, January-June, 1945

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 881.
Date: 1947
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 93, July-December, 1945 (open access)

Experiment Station Record, Volume 93, July-December, 1945

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies, and listings for Spanish edition publications from the Puerto Rico station. Name and subject indexes start on page 817.
Date: 1947
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library
Experiment Station Record, Volume 94, January-June, 1946 (open access)

Experiment Station Record, Volume 94, January-June, 1946

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, and bibliographies. Name and subject indexes start on page 849.
Date: 1947
Creator: U.S. Department of Agriculture. Agricultural Research Administration. Office of Experiment Stations.
Object Type: Book
System: The UNT Digital Library